an anonymous donor contacted us. was very moved by his story and wanted to step in but be anonymous because they're high profile. >> so everything is brand new. i can see you. i can see her. i can see the paintings on the wall. everything is really lovely and i'm really excited, really happy. >> now william will be able to live his life the way it was meant to be lived. >> i thank him from the bottom of my heart. >> reporter: abc7 news. >> we never could get name of that anonymous donor. obviously they wanted to be anonymous but we want to thank them for stepping up them not only saved his eyesight but saved the family's future. >>> teachers are being encouraged to use more engineering in their classrooms. it is called stem teaching. it incorporates engineering into other subjects. today at the exploratorium, bay area teacher got some hands-on training. activities included a look at bugs, how to design a planter to maximize sunlight in tight spaces. >> engineering has been identified as an important skill that all st